Q355 Z Purlin

Z Purlin · Q355 Grade · Cold-Formed Steel · Custom Length · For Steel Structure Roof & Wall Support

Product Summary

Q355 Z Purlin is a cold-formed Z-section purlin produced in Q355 grade steel. The Q355 grade provides higher yield strength than conventional structural grades, enabling lighter sections for roof and wall support framing.

This purlin is supplied cut-to-length and roll-formed to order for steel structure buildings, roof support and wall girt applications. The Z-section profile allows overlapping continuity across supports.

Differentiator: Q355 grade cold-formed Z purlin.

Supply capability: Order-based Supply — Available upon request / Custom supply. This listing is presented per the Order-based Supply classification; it is not packaged as standard in-stock material.

Key Specifications

Key Features

• Q355 grade — higher yield strength for efficient load-bearing sections.
• Cold-formed Z-section — overlapping continuity across supports for efficient spans.
• Custom length — cut-to-length matched to your framing layout.
• Punching available — hole patterns supplied per specification.
• Traceable material — mill test certificates available according to order requirements.

Applications

• Steel structure roof support
• Wall girts and framing
• Metal building secondary framing
• Roof purlin systems with overlap
• Structural support members

Why Choose Kyzotech

• Flexible grade and mill matching — matched to your end use and target cost.
• Traceable raw materials — coils sourced from qualified mills, with mill certificates available according to order requirements.
• Downstream processing support — roll forming, cutting and punching coordinated with the downstream product.
• Export-oriented packing — seaworthy packaging designed to reduce surface and edge damage during ocean transport.

Quality Control

• Incoming raw material inspection
• Grade and dimensional verification
• Profile and punching verification
• Third-party inspection available on request

Packaging & Delivery

Seaworthy export packing to protect surfaces and edges during ocean transport. Lead time is confirmed according to product specification, quantity, production schedule and destination. Delivery is arranged after commercial confirmation, depending on order quantity and profile arrangements. Shipment can be arranged from Shanghai, Tianjin, Qingdao or Weifang.

About Kyzotech

Kyzotech is the export brand of Nanjing Shunshuo New Material Technology Co., Ltd. — a manufacturer of steel structure building materials and enclosure systems, established in 2016.

Kyzotech is our export brand; our website and email are hosted at metalroofsystems.com.

FAQ

Q1: Is this supplied as a standard stock item? This specification is supplied on an order-based supply basis — Available upon request / Custom supply. It is not presented as standard in-stock material.

Q2: What grade does this cover? This listing covers Q355 grade Z purlin; other grades and profiles are supplied on request.

Q3: What documentation do you provide? Mill test certificates, packing list and shipment documents. Third-party inspection can be arranged on request.

Q4: What is your MOQ and lead time? MOQ and lead time are confirmed per grade and specification; confirmed according to product specification, quantity, production schedule and destination.

Request a Quote

Send us your grade, profile, section size, thickness, length, punching pattern, quantity and destination port.

📧 mason@metalroofsystems.com · 📞 [phone] · 🌐 metalroofsystems.com

© 2026 Nanjing Shunshuo New Material Technology Co., Ltd. All rights reserved. Kyzotech is a registered export brand of Nanjing Shunshuo New Material Technology Co., Ltd..